OK so they can be a bit Marmite....you either love them or Hate them, personaly i am in the former with a reasonable collection on my ticket. I have over 300+ cartridges in various sizes including my own design, i use a Ram charger to pump them mostly and when set up can be very quick and efficient, reliability is not an issue as i have a lube that works to softern the o rings and i have not changed a seal in years of use. The original Ensigns were one of the first "Pre charges" of the day although not my favorite they have their place. I have a good friend in the US who loves them for his own special reason....he has damadged shoulders and still likes to shoot proper rifles to which he has a no4 and a rolling block rifle, they still create a bit of interest at the ranges too.